Problem Solving

Hi, Can anyone help me to solve this circumference problem?? I am having a silly doubt here.. I have attached the diagram in the word attachment. please go through it and help me.



I had gone for calculating the circumference of the sector which comes out to be (PIE * r)/2, which is 1100/7 = 157.

Now how do I do the remaining? The answer is (C). Circumference means the whole length across the quadrant. Then how do I add 200 + 157 to get C as the answer. Please help.

The radius is : 100, hence the diameter = 200, the parimeter of the circle : d*Pi = 200 * 3.14 = 628
1/4 of the circle's length = 628/4 = 157.
Length of the fence: 100+100+157 =357
C is the answer.

sanalnnair wrote:Hi, Can anyone help me to solve this circumference problem?? I am having a silly doubt here.. I have attached the diagram in the word attachment. please go through it and help me.



I had gone for calculating the circumference of the sector which comes out to be (PIE * r)/2, which is 1100/7 = 157.

Now how do I do the remaining? The answer is (C). Circumference means the whole length across the quadrant. Then how do I add 200 + 157 to get C as the answer. Please help.

Add 200 to your ans- 157+(100+100)-- (the two sides-fencing is all around)

@limestone, @brijesh, thanks a lot.. I am little confused today.. Tomorrow i will be appearing for gmat.. may be its because of anxiety..